All posts by Geir

I just want to share my experience with the 5TB Seagate Barracuda ST5000LM000 2.5″ Internal Hard Drive.
I am not going to share my own thoughts about this drive her in public.
Instead I will leave it up to you! to do your own judgement.
Back in February 2019 I bought 10 of these drives for stationary use.
After 2 to 3 months, two of these failed totally.
Then in May, I bought one more from a different supplier. Well, this last one lasted for one and a half month.
To summarize; three out of eleven drives failed within three months of use.
I have never seen anything like it before.

UPDATE 2019.09.07. One more drive failed this morning. But at least this one lasted about six months.

Testing the Siglent SVA1015X

Been playing a bit with the SVA1015X today.
Here are some snap shots.

Noise floor @ 10MHz, preamp off


Noise floor @ 10MHz, preamp on


Measuring Rohde & Schwarz SMT02 Phase Noise @ 15MHz


Measuring my 10MHz GPS disciplined oscillator Phase Noise.


Measuring SAV1015X internal osc Phase Noise.


Next pixs; testing one of theese, terminated into a 51 Ohm resistor with the VNA function.


Banana to BNC adapter. VSWR: 10MHz to 1.5GHz


Banana to BNC adapter.
Smith chart: 10MHz to 1.5GHz